The MCACL120N10Y from Micro Commercial Components is a MOSFET with Continous Drain Current 120 A, Drain Source Resistance 3.5 to 4.2 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for MCACL120N10Y can be seen below.